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Siemens QN2150H Molded Case Circuit Breaker
- 150A
- 2 Pole
- Plug-On
Siemens
QN2150H
Molded Case Circuit Breaker
Brand
Siemens
SKU
QN2150H
Quantity
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Siemens QN2150H - 150A 2 Pole Molded Case Circuit Breaker
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Description
Part of the QN series, this 150A molded case circuit breaker delivers thermal-magnetic protection for residential and commercial electrical distribution. It is engineered to handle demanding loads safely. The plug-on configuration mounts into Siemens load centers and meter combinations. It requires four panel spaces and serves as an exact replacement for the legacy MPD2150H model. With a 22kAIC rating at 120/240VAC, this breaker offers enhanced fault protection and is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QN2150H |
| Series | QN |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Meter Combinations |
| Wire Gauge | 4 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment, Shunt Trip |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Requires 4 Panel Spaces |
Product FAQs
6 answersWhat is the difference between the Siemens QN2150 and QN2150H?
The QN2150H features a higher interrupting rating of 22kAIC at 240V, whereas the standard QN2150 is rated for 10kAIC. The H in the catalog number designates this higher fault current capacity.
What panels are compatible with the QN2150H circuit breaker?
This breaker is designed for use in Siemens load centers and meter combinations that accept Type QNH or QN frame breakers. It is commonly installed as a main breaker or a high-amperage branch breaker.
How many panel spaces does the QN2150H require?
When installed as a branch breaker, the QN2150H requires four full panel spaces. It occupies two adjacent spaces on the left and two on the right due to its larger molded case footprint.
Can the QN2150H replace older legacy breakers?
Yes, the QN2150H serves as an exact replacement for the legacy Siemens and Murray MPD2150H circuit breakers.
What wire sizes are accepted by the lugs on the QN2150H?
The terminal lugs accept 4 AWG to 300 kcmil copper or aluminum conductors. Because the cables connect longitudinally from the end of the breaker, verify that the enclosure provides sufficient wire bending space for these larger gauge conductors.
Is the Siemens QN2150H suitable for use as a main breaker?
Yes, this 150A breaker is frequently utilized as a main breaker in compatible Siemens residential load centers and meter-main combinations, provided the panel is rated for a 150A main.
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